Happy Peep (also known as Happy Feet Peeped in Japan and Happy Feet Universe in Australia) is a Australian-American 3D computer-animated family comedy fan-fiction series created by MarioFan65. It is a spin-off to the Happy Feet series (with the exception of the TV series Happy Feet: The Series) with the adventures of Mumble and his friends. Every episode feature their own segment like Mumble, Ramón, Esequiel, Montay and most segments including all cast episodes like "Tickle Torment Future". This show premiered on February 7, 2014 starting with the episode "The Five Amigos get a Tickle Torment".

Also back in 2013, the show was originally titled Mumble's Gang which was set to be released in November 2013. Like Bach's Story, the show ended up being pushed to February 2014 when MarioFan65 was on vacation in a cruise.

On January 2014, the show ended up being renamed to Happy Peep due to the title similary to the TV series, Yogi's Gang.

This show premiered on February 7, 2014 on the same day that happened when The LEGO Movie came out in theaters from Warner Bros.

Some of the main characters appear in each episode. Some of them are not, similar to Angry Birds Toons and Tom & Jerry Kids.

This series does not feature songs that much like in some of the Happy Feet: The Series episodes, but there is some like "Applause" by Lady Gaga, "Witch Doctor" by the Cartoons, and stuff like that.